China Wire Rope Pulling Pulley Block Stringing Block for Power Cable double pulley

Merchandise Description

Wire Rope Pulling Pulley Block Stringing Block for Energy Cable
 

Item Deatail
Purchase amount: 20131
·Model:  straight line variation.
·Use: For stretching all sorts of optical fiber cables.
·Features: Undertake Φ660 nylon sheave block .
·Weight (kg): 27

Application
OPGW stringing blocks are specifically created for stringing OPGW cables on transmission line.

Characteristic
The root of sheave is specially designed and made.
The sheave can be produced of high power nylon or aluminum alloy lined with neoprene.

Quality Manage

We have the complete production equipments and professional manufacturing group to manage the whole procedure from production to packing cargo. All products will a hundred% check prior to supply to ensure the top quality.
Remarks
We can offer all varieties of stringing equipment according to customers’ specifications.

Technical Parameter

Product No.

Sheavc size(mm)

Rated Load(KN)

Weigh(kg)

Feature

20131

660*one hundred

20

27

Small optical cable groove

20132

916*110

fifty

50

ONEREEL is specialised in the design and manufacture Steel Spools, Plastic Spools, Cable roller, Yarn Bobbin,  aluminum spool , Cable Reel Stand,  Sheave Pulley, Cable Conveyor, Hydraulic Puller Tensioner, Gin Poles, Cable Pulling Winch, Safety Tools, Wire Grip, Plastic Elements, and Pump in the sector since 1991. All of our buyer spool and wire provider are engineered and produced in our 120,000 sq. foot point out-of-the-artwork manufacturing plant found in HangZhou, ZHangZhoug.
ONEREEL is specialised in the manufacture of reels for cables and electrical wires, iron axles, disc spool for steel cables and numerous shipping reels. With sturdy technological capabilities and total collection of production equipment. All of our items go by means of the dynamic and static balance exams. We have handed the quality program certification ISO9001:2000 to ensure the product good quality. Pursuing the expectations of GB4004-eighty three, JB/T8997, DIN46395 and DIN46397 in productions. 

 

 

Hot Product

Our Client

 

 

Packaging & Transportation

 

Authoritative Certificate

 

 

FAQ

Q1: Can I get samples?
A: According to spool model and material, we will recommend.
Q2: How lengthy is the sample Direct TIME? 
A: For current samples, it normally takes 2-3 times. If no inventory, we will suggest direct time.
Q3: Can you build new merchandise?
A: Yes, we have new merchandise creating capacity and we are very good at establishing new mold.
This autumn: How a lot is the freight demand?
A: It relies upon on spool bundle quantity, if small amount, volume and urgent goods, 
we may advise FEDEX or other couriers’ demand for your check. 
If volume even bigger and by seaway suited, we supply FOB or CIF price to you.
Q5: What structure of the file do you need to have if I want my personal layout?
A: We have our very own mound workshop and can offer spool or other plastic merchandise establishing and injection service.
Q6: How about your service?
A: We have pre-sale service, in-sale service and after-sale service. As “Consumer 1st” is the most essential principle of business operation.
 

US $20-200
/ Piece
|
1 Piece

(Min. Order)

###

Type: Stringing Block
Certification: CE, CCC, ISO
Customized: Customized
Condition: New
Feature: Explosion-Proof
Outside Diameter: 822mm,916mm

###

Samples:
US$ 300/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Item No.
Sheavc size(mm)
Rated Load(KN)
Weigh(kg)
Feature
20131
660*100
20
27
Small optical cable groove
20132
916*110
50
50
US $20-200
/ Piece
|
1 Piece

(Min. Order)

###

Type: Stringing Block
Certification: CE, CCC, ISO
Customized: Customized
Condition: New
Feature: Explosion-Proof
Outside Diameter: 822mm,916mm

###

Samples:
US$ 300/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Item No.
Sheavc size(mm)
Rated Load(KN)
Weigh(kg)
Feature
20131
660*100
20
27
Small optical cable groove
20132
916*110
50
50

Pulley Type

There are several types of pulleys. These include fixed pulleys, load multipliers and movable pulleys. Below is a description of each pulley type. A load multiplier is a special type of pulley with multiple wheels for increased lifting capacity. It is used in a wide range of applications including power transmission and construction. Some common uses of pulleys are listed below.

moving pulley

Movable pulleys work by transferring the weight of a load to another object of the same mass. Since a live pulley is inherently frictionless and weightless, the force required to lift a load with it is the same as the weight of the load. This principle applies to tall buildings and residences. It is an excellent choice for lifting heavy objects such as furniture and washing machines.
A pulley is a mechanical device with a wheel that rotates on a shaft. The axle is attached to the wheel and is usually fixed. The movable pulley can be fixed or movable, both of which can change the direction of the force on the rope. Some pulleys can also change the magnitude and direction of the force. They are ideal for a variety of applications, from lifting heavy objects to transporting objects.
Another type of movable pulley works by transmitting force to another object. It has a free axis and the total force provided by the rope tension is balanced. Since the tension on the rope is constant in each segment, pulling one end of the rope will double the force on the shaft, resulting in two mechanical advantages. This mechanical advantage is the main reason why movable pulleys are so versatile.
Another form of moving pulley is called a KWL diagram. The KWL diagram summarizes the basic concepts of the drive wheel. KWL diagrams are an excellent way to assess a student’s understanding of the concepts discussed in the course. Word questions are a great way to check whether students understand concepts. When students answer the word questions correctly, the answer is yes!
pulley

Fixed wheel pulley

If you need to move heavy objects, a single fixed wheel pulley is not a good choice. Using a single fixed pulley might be similar to using a handbag, but it’s not very convenient. This type of pulley system relies on friction to transmit motion. As a result, it can slip and isn’t always reliable. Fortunately, you can find other options that work just as well.
Fixed pulleys are the most basic type of pulley. They consist of grooved wheels and ropes attached to objects. These pulleys make lifting easier. Because the rope or cable only moves in one direction, the movement of the object feels lighter. And they are also easy to install. However, before you buy a fixed wheel pulley, make sure it is strong enough to support the weight of the load.
The disadvantages of fixed pulleys are obvious. One of them is the lack of mechanical advantage. A fixed pulley pulls up with the same force as a single moving pulley, and a single fixed pulley is not particularly effective as a force multiplier. However, the effect is more pronounced when you combine multiple fixed-wheel pulleys. You will get double the power! So what do fixed wheel pulleys have to offer?
Fixed wheel pulleys can be as small as a ring. A single ring pulley requires twice as much force as the weight being pulled. Adding more loops to the rope will reduce the effort required to pull the weight. The mechanical advantage of a fixed pulley is proportional to the number of strands running to the free pulley. A 100-pound pull on the free end will lift a 300-pound load.
pulley

composite pulley

Compound pulleys are pulleys that can be used to change the direction of a control wire. It can also be used to modify the mechanical force of the wire by moving the item it is connected to. In galleons, compound pulleys are more common. They are often combined with other ropes for mechanical advantage. Here are some common uses for composite pulleys.
The ideal mechanical advantage of a pulley is equal to the number of rope segments that pull up the load. This means that the more rope segments, the less force is required. A compound pulley will have the ideal mechanical advantage of 2, which means it will generate more force than a simple pulley. Composite pulleys are also more efficient at transmitting force because their number of rope segments is usually equal to the unit weight.
Composite pulley systems use more than two pulleys and ropes. More pulleys will reduce the force required to move heavier objects. They are usually used in large sailboats. The system is also used on construction sites. It can be used for a variety of applications, including lifting large objects or transmitting electricity. You can imagine how it would change your life if you had to move a large sailboat, but the result would be the same: a composite pulley system would make it easier to lift a large sailboat.
Composite pulleys are also known as fixed pulleys. The fixed pulley is stationary, and the movable pulley moves back and forth. The latter is more effective when used with a detachable cord or strap. On the other hand, a moving pulley is a moving pulley and it gives you a mechanical advantage. You can imagine this pulley on a flagpole.

load multiplier

The multiplication system has three basic parts: the rope grab, the connector, and the pulley. While some basic multipliers may combine the three parts, the concept remains the same. The multiplication system can make pulling the rope easier by reducing the amount of friction that occurs. Below are some examples of multiplication systems. A compact rope grab is a great option for resetting the multiplier.
The load reduction that a pulley system can achieve is proportional to the number of ropes used to support it. Although most utility pulley systems use only four ropes, the theoretical maximum load reduction is a quarter of the actual load. In other words, the four-wheel system only reduces the weight of a 1,000-pound load by a quarter. That would require 167 pounds of force, a far cry from the 500-pound load a single pulley system can achieve.
The mechanical advantage of a pulley system can be calculated by calculating the ratio between the forces exerted on each wire. For example, a 90-kilogram load is supported by three ropes, each weighing about thirty-five pounds. The ropes on pulleys A and B each carry a load of 60 kg. Using this formula, a single pulley system will yield a mechanical advantage over two tractors.
To calculate the force required to pull the rope over the pulley, measure the angle and deflection between the ropes. The deflection angle when added to the included angle should equal 180 degrees. A 75 degree angle requires 159% of the load force. This means a total load multiplier of four. This formula is an important tool for calculating the force multiple of the pulley.
pulley

Disadvantages of fixed pulleys

There are two basic types of pulleys: movable and fixed. Active pulleys are more advanced, allowing the pulley to move according to the load. They reduce the force required to lift the load. Active roller pulleys are more compact and therefore take up less space. Both types are good for lifting heavier objects, but they each have their pros and cons.
Fixed wheel pulleys can be used to lift heavy objects. This type of pulley consists of a wheel with a fixed shaft that has grooves on its edges for guiding ropes or cables. This is a simple machine as no motor or engine is required to lift objects. When two or more wheels are used together, the ropes around the wheels form a powerful hoist.
Single wheel pulleys are not suitable for lifting. They tend to push things down. Also, they are unreliable because they rely on friction and can slip. Also, a single wheel pulley would require a lot of space. Another disadvantage of fixed-wheel pulleys is that they make it difficult to move heavy objects easily. Single fixed-wheel pulleys also tend to slip easily, making them a poor choice for many applications.
Fixed wheel pulleys are also easier to install and maintain than manually operated ones. It requires less space and lubrication than manual pulleys. Manual pulleys can cause injury because the operator will be lifting the full weight of the heavy object. Additionally, rope slippage can lead to muscle strains and rope burns. And the system requires frequent maintenance.

China Wire Rope Pulling Pulley Block Stringing Block for Power Cable     double pulley	China Wire Rope Pulling Pulley Block Stringing Block for Power Cable     double pulley
editor by czh 2023-01-15